Organic molecules for use in optoelectronic devices

ABSTRACT

An organic molecule, is disclosed having:one first chemical moiety with a structure of formula I:andone second chemical moiety with a structure of formula II:wherein the first chemical moiety is linked to the second chemical moiety via a single bond; andone third chemical moiety with a structure of Formula III:wherein the first chemical moiety is linked to the third chemical moiety via a single bond.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. § 371 InternationalApplication No. PCT/EP2018/079019, filed Oct. 23, 2018, which claimspriority to European Patent Application No. 17199193.8, filed Oct. 30,2017, the disclosures of which are incorporated by reference herein intheir entireties.

FIELD OF INVENTION

The invention relates to light-emitting organic molecules and their usein organic light-emitting diodes (OLEDs) and in other optoelectronicdevices.

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiments of the present invention will be described belowin more detail, with reference to the accompanying drawings, of which:

FIG. 1 is an emission spectrum of example 1 (10% by weight) in PMMA.

FIG. 2 is an emission spectrum of example 2 (10% by weight) in PMMA.

FIG. 3 is an emission spectrum of example 3 (10% by weight) in PMMA.

FIG. 4 is an emission spectrum of example 4 (10% by weight) in PMMA.

FIG. 5 is an emission spectrum of example 5 (10% by weight) in PMMA.

FIG. 6 is an emission spectrum of example 6 (10% by weight) in PMMA.

FIG. 7 is an emission spectrum of example 7 (10% by weight) in PMMA.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS OF THE INVENTION

Exemplary embodiments of the invention will now be discussed in furtherdetail. This invention may, however, be embodied in many different formsand should not be construed as limited to the embodiments set forthherein.

The object of the present invention is to provide molecules which aresuitable for use in optoelectronic devices.

This object is achieved by the invention which provides a new class oforganic molecules.

According to the invention, the organic molecules are purely organicmolecules, i.e. they do not contain any metal ions in contrast to metalcomplexes known for use in organic optoelectronic devices.

According to the present invention, the organic molecules exhibitemission maxima in the blue, sky-blue or green spectral range. Theorganic molecules exhibit in particular emission maxima between 420 nmand 520 nm, preferably between 440 nm and 495 nm, more preferablybetween 450 nm and 470 nm. The photoluminescence quantum yields of theorganic molecules according to the invention are, in particular, 70% ormore. The molecules according to the invention exhibit in particularthermally activated delayed fluorescence (TADF). The use of themolecules according to the invention in an optoelectronic device, forexample an organic light-emitting diode (OLED), leads to higherefficiencies of the device. Corresponding OLEDs have a higher stabilitythan OLEDs with known emitter materials and comparable color.

The organic light-emitting molecules according to the invention compriseor consist of

-   -   one first chemical moiety comprising or consisting of a        structure of Formula I,

and

-   -   one second chemical moiety comprising or consisting of a        structure of Formula II,

wherein the first chemical moiety is linked to the second chemicalmoiety via a single bond; and

-   -   one third chemical moiety comprising or consisting of a        structure of Formula III,

wherein the first chemical moiety is linked to the third chemical moietyvia a single bond.

T is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe second chemical moiety,

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹.

V is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe second chemical moiety,

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹.

W is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe second chemical moiety,

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹.

X is selected from the group consisting of R¹ and the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety.

Y is selected from the group consisting of R¹ and the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety.

# represents the binding site of a single bond linking the firstchemical moiety to the second chemical moiety.

A is selected from the group consisting of O, S and N-Ph.

Z is selected from the group consisting of a direct bond, CR³R⁴,C═CR³R⁴, C═O, C═NR³, NR³, O, SiR³R⁴, S, S(O) and S(O)₂.

R^(N) is at each occurrence independently from another selected from thegroup consisting of hydrogen, deuterium,

C₁-C₅-alkyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium;

C₂-C₈-alkenyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium;

C₂-C₈-alkynyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium;

C₆-C₁₈-aryl,

-   -   which is optionally substituted with one or more substituents        R⁶; and

C₃-C₁₇-heteroaryl,

-   -   which is optionally substituted with one or more substituents        R⁶.

R^(I), R^(II), R^(III), and R^(IV) at each occurrence independently fromanother selected from the group consisting of $ and R^(d).

R^(d) is at each occurrence independently from another selected from thegroup consisting of hydrogen, deuterium,

C₆-C₁₈-aryl,

-   -   which is optionally substituted with one or more substituents        independently from another selected from the group consisting of        -   C₁-C₅-alkyl,            -   wherein optionally one or more hydrogen atoms are                independently from each other substituted by deuterium,                CN, CF₃, or F;    -   and        -   C₆-C₁₈-aryl,            -   which is optionally substituted with one or more                C₁-C₅-alkyl substituents.

$ represents the binding site of a single bond linking the firstchemical moiety to the third chemical moiety.

R¹ is at each occurrence independently from another selected from thegroup consisting of hydrogen, deuterium,

C₁-C₅-alkyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium;

C₂-C₈-alkenyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium;

C₂-C₈-alkynyl,

-   -   wherein one or more hydrogen atoms are optionally substituted by        deuterium; and

C₆-C₁₈-aryl,

-   -   which is optionally substituted with one or more substituents        independently from another selected from the group consisting of        -   C₁-C₅-alkyl,            -   wherein optionally one or more hydrogen atoms are                independently from each other substituted by deuterium,                CN, CF₃, or F;    -   and        -   C₆-C₁₈-aryl,            -   which is optionally substituted with one or more                C₁-C₅-alkyl substituents.

R^(a), R³ and R⁴ is at each occurrence independently from anotherselected from the group consisting of hydrogen,

deuterium,

N(R⁵)₂,

OR⁵,

Si(R⁵)₃,

B(OR⁵)₂,

OSO₂R⁵,

CF₃,

CN,

F,

Br,

I,

C₁-C₄₀-alkyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₁-C₄₀-alkoxy,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₁-C₄₀-thioalkoxy,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₂-C₄₀-alkenyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₂-C₄₀-alkynyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₆-C₆₀-aryl,

-   -   which is optionally substituted with one or more substituents        R⁵; and

C₃-C₅₇-heteroaryl,

-   -   which is optionally substituted with one or more substituents        R⁵.

R⁵ is at each occurrence independently from another selected from thegroup consisting of hydrogen,

deuterium,

N(R⁶)₂,

OR⁶,

Si(R⁶)₃,

B(OR⁶)₂,

OSO₂R⁶,

CF₃,

CN,

F,

Br,

I,

C₁-C₄₀-alkyl,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₁-C₄₀-alkoxy,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₁-C₄₀-thioalkoxy,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₂-C₄₀-alkenyl,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₂-C₄₀-alkynyl,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₆-C₆₀-aryl,

-   -   which is optionally substituted with one or more substituents        R⁶; and C₃-C₅₇-heteroaryl,    -   which is optionally substituted with one or more substituents        R⁶.

R^(f) is at each occurrence independently from another selected from thegroup consisting of hydrogen,

deuterium,

N(R^(5f))₂,

OR^(5f),

Si(R^(5f))₃,

B(OR^(5f))₂,

OSO₂R^(5f),

CF₃,

CN,

F,

Br,

I,

C₁-C₄₀-alkyl,

-   -   which is optionally substituted with one or more substituents        R^(5f) and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂,        Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂,        NR^(5f), O, S or CONR^(5f);

C₁-C₄₀-alkoxy,

-   -   which is optionally substituted with one or more substituents        R^(5f) and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂,        Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂,        NR^(5f), O, S or CONR^(5f);

C₁-C₄₀-thioalkoxy,

-   -   which is optionally substituted with one or more substituents        R^(5f) and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂,        Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂,        NR^(5f), O, S or CONR^(5f);

C₂-C₄₀-alkenyl,

-   -   which is optionally substituted with one or more substituents        R^(5f) and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂,        Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂,        NR^(5f), O, S or CONR^(5f);

C₂-C₄₀-alkynyl,

-   -   which is optionally substituted with one or more substituents        R^(5f) and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂,        Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂,        NR^(5f), O, S or CONR^(5f);

C₆-C₆₀-aryl,

-   -   which is optionally substituted with one or more substituents        R^(5f); and

C₃-C₅₇-heteroaryl,

-   -   which is optionally substituted with one or more substituents        R^(5f).

R^(5f) is at each occurrence independently from another selected fromthe group consisting of hydrogen,

deuterium,

N(R⁶)₂,

OR⁶,

Si(R⁶)₃,

B(OR⁶)₂,

OSO₂R⁶,

CF₃,

CN,

F,

Br,

I,

C₁-C₄₀-alkyl,

-   -   which is optionally substituted with one or more substituents R⁶        and wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₁-C₄₀-alkoxy,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₁-C₄₀-thioalkoxy,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₂-C₄₀-alkenyl,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₂-C₄₀-alkynyl,

-   -   which is optionally substituted with one or more substituents R⁶        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,        C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;

C₆-C₆₀-aryl,

-   -   which is optionally substituted with one or more substituents        R⁶; and

C₃-C₅₇-heteroaryl,

-   -   which is optionally substituted with one or more substituents        R⁶.

R⁶ is at each occurrence independently from another selected from thegroup consisting of hydrogen,

deuterium,

OPh,

CF₃,

CN,

F,

C₁-C₅-alkyl,

-   -   wherein optionally one or more hydrogen atoms are independently        from each other substituted by deuterium, CN, CF₃, or F;

C₁-C₅-alkoxy,

-   -   wherein optionally one or more hydrogen atoms are independently        from each other substituted by deuterium, CN, CF₃, or F;

C₁-C₅-thioalkoxy,

-   -   wherein optionally one or more hydrogen atoms are independently        from each other substituted by deuterium, CN, CF₃, or F;

C₂-C₆-alkenyl,

-   -   wherein optionally one or more hydrogen atoms are independently        from each other substituted by deuterium, CN, CF₃, or F;

C₂-C₆-alkynyl,

-   -   wherein optionally one or more hydrogen atoms are independently        from each other substituted by deuterium, CN, CF₃, or F;

C₆-C₁₈-aryl,

-   -   which is optionally substituted with one or more C₁-C₅-alkyl        substituents;

C₃-C₁₇-heteroaryl,

-   -   which is optionally substituted with one or more C₁-C₅-alkyl        substituents;

N(C₆-C₁₈-aryl)₂;

N(C₃-C₁₇-heteroaryl)₂; and

N(C₃-C₁₇-heteroaryl)(C₆-C₁₈-aryl).

Optionally, one or more of the substituents R^(a), R³, R⁴ or R⁵independently from each other form a mono- or polycyclic, aliphatic,aromatic and/or benzo-fused ring system with one or more othersubstituents R^(a), R³, R⁴ or R⁵.

Optionally, one or more of the substituents R^(f) or R^(5f)independently from each other form a mono- or polycyclic, aliphatic,aromatic and/or benzo-fused ring system with one or more othersubstituents R^(f) or R^(5f).

According to the invention, exactly one (one and only one) substituentselected from the group consisting of T, V, W, X, and Y is the bindingsite of a single bond linking the first chemical moiety to the thirdchemical moiety, and exactly one substituent selected from the groupconsisting of T, V and W represents the binding site of a single bondlinking the first chemical moiety to the second chemical moiety.

According to the invention, T is hydrogen in case W is the binding siteof a single bond linking the first chemical moiety and the thirdchemical moiety and V represents the binding site of a single bondlinking the first chemical moiety and the second chemical moiety; and Wis hydrogen in case T is the binding site of a single bond linking thefirst chemical moiety and the third chemical moiety and V represents thebinding site of a single bond linking the first chemical moiety and thesecond chemical moiety.

According to the invention, exactly one substituent selected from thegroup consisting of R^(I), R^(II) R^(III) and R^(IV) is the binding siteof a single bond linking the first chemical moiety to the third chemicalmoiety (represented by $).

In some embodiments of the invention, the second chemical moiety and thethird chemical moiety of the organic molecule are not both in a metaposition to the triazine ring shown in formula I. In other words, thesubstitution pattern of the central phenyl group shown in formula I isnot “meta-meta-meta” with respect to the triazine moiety, the secondchemical moiety, and the third chemical moiety in these embodiments.

In one embodiment, the organic molecules according to the inventioncomprise or consist of a first chemical moiety comprising or consistingof a structure of Formula I,

wherein

X is R¹ in case V is the binding site of a single bond linking the firstchemical moiety and the second chemical moiety;

and apart from that the aforementioned definitions apply.

In one embodiment, the organic molecules according to the inventioncomprise or consist of a first chemical moiety comprising or consistingof a structure of Formula I,

X is H in case V is the binding site of a single bond linking the firstchemical moiety and the second chemical moiety;

and apart from that the aforementioned definitions apply.

In one embodiment, the organic molecules according to the inventioncomprise or consist of a first chemical moiety comprising or consistingof a structure of Formula I-YY,

wherein R^(N) is defined as above,

T^(##) is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe second chemical moiety,

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹;

V^(##) is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹;

W^(##) is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe second chemical moiety,

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹;

X^(##) is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹;

Y^(##) is selected from the group consisting of

the binding site of a single bond linking the first chemical moiety tothe third chemical moiety, and R¹;

exactly one substituent selected from the group consisting of T^(##) andW^(##) represents the binding site of a single bond linking the firstchemical moiety and the second chemical moiety,

exactly one substituent selected from the group consisting of T^(##),V^(##), W^(##), X^(##) and Y^(##) represents the binding site of asingle bond linking the first chemical moiety and the third chemicalmoiety and

exactly one substituent selected from the group consisting of R^(I),R^(II), R^(III) and R^(IV) is the binding site of a single bond linkingthe first chemical moiety to the third chemical moiety (represented by$).

In one embodiment, the organic molecules according to the inventioncomprise or consist of a first chemical moiety comprising or consistingof a structure of Formula I-Y,

wherein R¹, R^(N) are defined as above,

X^(#) is the binding site of a single bond linking the first chemicalmoiety to the third chemical moiety,

T^(#) is the binding site of a single bond linking the first chemicalmoiety to the second chemical moiety or is R¹,

W^(#) is the binding site of a single bond linking the first chemicalmoiety to the second chemical moiety or is R¹,

exactly one substituent selected from the group consisting of T^(#) andW^(#) represents the binding site of a single bond linking the firstchemical moiety and the second chemical moiety, and

exactly one substituent selected from the group consisting of R^(I),R^(II), R^(III) and R^(IV) is the binding site of a single bond linkingthe first chemical moiety to the third chemical moiety (represented by$).

In one embodiment, A is selected from group consisting of O and S.

In one embodiment, A is O.

In one embodiment, A is S.

In one embodiment, R¹ is at each occurrence independently from anotherselected from the group consisting of H, methyl and phenyl.

In one embodiment, R¹ is H.

In one embodiment, R^(N) is Ph, which is optionally substituted with oneor more substituents independently from each other selected from thegroup consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph.

In one embodiment, R^(N) is Ph.

In one embodiment, X represents the binding site of a single bondlinking the first chemical moiety and the third chemical moiety and Trepresents the binding site of a single bond linking the first chemicalmoiety and the second chemical moiety.

In one embodiment, V is the binding site of a single bond linking thefirst chemical moiety to the second chemical moiety or is hydrogen.

In one embodiment, R^(d) is at each occurrence independently fromanother selected from the group consisting of H and phenyl.

In one embodiment, R^(d) is H.

In one embodiment, R^(f) is at each occurrence independently fromanother selected from the group consisting of H and phenyl.

In one embodiment, R^(f) is H.

In further embodiments of the invention, one of the group consisting ofR^(I), R^(II), R^(III) and R^(IV) binding site of a single bond linkingthe first chemical moiety to the third chemical moiety (represented by$) and H.

In one embodiment of the invention, R^(III) is the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety (represented by $).

In another embodiment of the invention, R^(I) is the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety (represented by $).

In another embodiment of the invention, R^(II) is the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety (represented by $).

In another embodiment of the invention, R^(IV) is the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety (represented by $).

In one embodiment of the invention, T represents the binding site of asingle bond linking the first chemical moiety and the third chemicalmoiety.

In one embodiment of the invention, W represents the binding site of asingle bond linking the first chemical moiety and the third chemicalmoiety.

In one embodiment of the invention, X represents the binding site of asingle bond linking the first chemical moiety and the third chemicalmoiety.

In one embodiment of the invention, Y represents the binding site of asingle bond linking the first chemical moiety and the third chemicalmoiety.

In a further embodiment of the invention, the second chemical moietycomprises or consists of a structure of Formula IIa:

wherein # and R^(a) are defined as above.

In a further embodiment of the invention, R^(a) is at each occurrenceindependently from another selected from the group consisting of

hydrogen,

Me,

^(i)Pr,

^(t)Bu,

CN,

CF₃,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   carbazolyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   and N(Ph)₂.

In a further embodiment of the invention, R^(a) is at each occurrenceindependently from another selected from the group consisting of

hydrogen,

Me,

^(i)Pr,

^(t)Bu,

CN,

CF₃,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph, and-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph.

In a further embodiment of the invention, the second chemical moietycomprises or consists of a structure of Formula IIb, a structure ofFormula IIb-2, a structure of Formula IIb-3 or a structure of FormulaIIb-4:

wherein

R^(b) is at each occurrence independently from another selected from thegroup consisting of deuterium,

N(R⁵)₂,

OR⁵,

Si(R⁵)₃,

B(OR⁵)₂,

OSO₂R⁵,

CF₃,

CN,

F,

Br,

I,

C₁-C₄₀-alkyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₁-C₄₀-alkoxy,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₁-C₄₀-thioalkoxy,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₂-C₄₀-alkenyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₂-C₄₀-alkynyl,

-   -   which is optionally substituted with one or more substituents R⁵        and    -   wherein one or more non-adjacent CH₂-groups are optionally        substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,        C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;

C₆-C₆₀-aryl,

-   -   which is optionally substituted with one or more substituents        R⁵; and

C₃-C₅₇-heteroaryl,

-   -   which is optionally substituted with one or more substituents        R⁵.

For additional variables, the aforementioned definitions apply.

In one additional embodiment of the invention, the second chemicalmoiety comprises or consists of a structure of Formula IIc, a structureof Formula IIc-2, a structure of Formula IIc-3 or a structure of FormulaIIc-4:

wherein the aforementioned definitions apply.

In a further embodiment of the invention, R^(b) is at each occurrenceindependently from another selected from the group consisting of

Me,

^(i)Pr,

^(t)Bu,

CN,

CF₃,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   carbazolyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   and N(Ph)₂.

In a further embodiment of the invention, R^(b) is at each occurrenceindependently from another selected from the group consisting of

Me,

^(i)Pr,

^(t)Bu,

CN,

CF₃,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph, and-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph.

In the following, exemplary embodiments of the second chemical moietyare shown:

wherein for #, Z, R^(a), R³, R⁴ and R⁵, the aforementioned definitionsapply.

In one embodiment, R^(a) and R⁵ is at each occurrence independently fromanother selected from the group consisting of hydrogen (H), methyl (Me),i-propyl (CH(CH₃)₂) (^(i)Pr), t-butyl (^(t)Bu), phenyl (Ph),

-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph; and-   diphenylamine (NPh₂).

In a further embodiment of the invention, the third chemical moietycomprises or consists of a structure selected from the group of FormulaIII-I, Formula III-III, Formula III-IV:

wherein A, R^(d) and R^(f) are defined as above.

In a preferred embodiment of the invention, the third chemical moietycomprises or consists of a structure of Formula III-I.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula III-1, Formula III-2, Formula III-3 orFormula III-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula III-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula IIIa-1, Formula IIIa-2, Formula IIIa-3or Formula IIIa-4:

wherein

R^(c) is at each occurrence independently from another selected from thegroup consisting of Me,

^(i)Pr,

^(t)Bu,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   carbazolyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   and N(Ph)₂.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula IIIa-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula IIIb-1, Formula IIIb-2,Formula IIIb-3 or Formula IIIb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula IIIb-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula IV-1, Formula IV-2, Formula IV-3 orFormula IV-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula IV-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula IVa-1, Formula IVa-2, Formula IVa-3 orFormula IVa-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula IVa-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula IVb-1, Formula IVb-2,Formula IVb-3 or Formula IVb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula IVb-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula V-1, Formula V-2, Formula V-3 orFormula V-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula V-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula Va-1, Formula Va-2, Formula Va-3 orFormula Va-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula Va-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula Vb-1, Formula Vb-2,Formula Vb-3 or Formula Vb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula Vb-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VI-1, Formula VI-2, Formula VI-3 orFormula VI-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VI-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VIa-1, Formula VIa-2, Formula VIa-3 orFormula VIa-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIa-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VIb-1, Formula VIb-2,Formula VIb-3 or Formula VIb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIb-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VII-1, Formula VII-2, Formula VII-3 orFormula VII-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VII-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VIIa-1, Formula VIIa-2, Formula VIIa-3or Formula VIIa-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIIa-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VIIb-1, Formula VIIb-2,Formula VIIb-3 or Formula VIIb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIIb-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VIII-1, Formula VIII-2, Formula VIII-3or Formula VIII-4:

wherein the aforementioned definitions apply.

In a preferred embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VIII-1.

In one embodiment of the invention, the organic molecules comprise orconsist of a structure of Formula VIIIa-1, Formula VIIIa-2, FormulaVIIIa-3 or Formula VIIIa-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIIIa-1.

In one additional embodiment of the invention, the organic moleculescomprise or consist of a structure of Formula VIIIb-1, Formula VIIIb-2,Formula VIIIb-3 or Formula VIIIb-4:

wherein the aforementioned definitions apply.

In a preferred embodiment, the organic molecules comprise or consist ofa structure of Formula VIIIb-1.

In one embodiment of the invention, R^(c) is at each occurrenceindependently from another selected from the group consisting of

Me,

^(i)Pr,

^(t)Bu,

CN,

CF₃,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyridinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph,-   pyrimidinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph, and-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, and Ph.

In one embodiment of the invention, R^(c) is at each occurrenceindependently from another selected from the group consisting of

Me,

^(i)Pr,

^(t)Bu,

-   Ph, which is optionally substituted with one or more substituents    independently from each other selected from the group consisting of    Me, ^(i)Pr, ^(t)Bu, CN, CF₃ and Ph; and-   triazinyl, which is optionally substituted with one or more    substituents independently from each other selected from the group    consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃ and Ph.

As used throughout the present application, the terms “aryl” and“aromatic” may be understood in the broadest sense as any mono-, bi- orpolycyclic aromatic moieties. Accordingly, an aryl group contains 6 to60 aromatic ring atoms, and a heteroaryl group contains 5 to 60 aromaticring atoms, of which at least one is a heteroatom. Notwithstanding,throughout the application the number of aromatic ring atoms may begiven as subscripted number in the definition of certain substituents.In particular, the heteroaromatic ring includes one to threeheteroatoms. Again, the terms “heteroaryl” and “heteroaromatic” may beunderstood in the broadest sense as any mono-, bi- or polycyclichetero-aromatic moieties that include at least one heteroatom. Theheteroatoms may at each occurrence be the same or different and beindividually selected from the group consisting of N, O and S.Accordingly, the term “arylene” refers to a divalent substituent thatbears two binding sites to other molecular structures and therebyserving as a linker structure. In case, a group in the exemplaryembodiments is defined differently from the definitions given here, forexample, the number of aromatic ring atoms or number of heteroatomsdiffers from the given definition, the definition in the exemplaryembodiments is to be applied. According to the invention, a condensed(annulated) aromatic or heteroaromatic polycycle is built of two or moresingle aromatic or heteroaromatic cycles, which formed the polycycle viaa condensation reaction.

In particular, as used throughout the present application the term arylgroup or heteroaryl group comprises groups which can be bound via anyposition of the aromatic or heteroaromatic group, derived from benzene,naphthaline, anthracene, phenanthrene, pyrene, dihydropyrene, chrysene,perylene, fluoranthene, benzanthracene, benzphenanthrene, tetracene,pentacene, benzpyrene, furan, benzofuran, isobenzofuran, dibenzofuran,thiophene, benzothiophene, isobenzothiophene, dibenzothiophene; pyrrole,indole, isoindole, carbazole, pyridine, quinoline, isoquinoline,acridine, phenanthridine, benzo-5,6-quinoline, benzo-6,7-quinoline,benzo-7,8-quinoline, phenothiazine, phenoxazine, pyrazole, indazole,imidazole, benzimidazole, naphthoimidazole, phenanthroimidazole,pyridoimidazole, pyrazinoimidazole, quinoxalinoimidazole, oxazole,benzoxazole, napthooxazole, anthroxazol, phenanthroxazol, isoxazole,1,2-thiazole, 1,3-thiazole, benzothiazole, pyridazine, benzopyridazine,pyrimidine, benzopyrimidine, 1,3,5-triazine, quinoxaline, pyrazine,phenazine, naphthyridine, carboline, benzocarboline, phenanthroline,1,2,3-triazole, 1,2,4-triazole, benzotriazole, 1,2,3-oxadiazole,1,2,4-oxadiazole, 1,2,5-oxadiazole, 1,2,3,4-tetrazine, purine,pteridine, indolizine and benzothiadiazole or combinations of theabovementioned groups.

As used throughout the present application the term cyclic group may beunderstood in the broadest sense as any mono-, bi- or polycyclicmoieties.

As used throughout the present application the term alkyl group may beunderstood in the broadest sense as any linear, branched, or cyclicalkyl substituent. In particular, the term alkyl comprises thesubstituents methyl (Me), ethyl (Et), n-propyl (^(n)Pr), i-propyl(^(i)Pr), cyclopropyl, n-butyl (^(n)Bu), i-butyl (^(i)Bu), s-butyl(^(s)Bu), t-butyl (^(t)Bu), cyclobutyl, 2-methylbutyl, n-pentyl,s-pentyl, t-pentyl, 2-pentyl, neo-pentyl, cyclopentyl, n-hexyl, s-hexyl,t-hexyl, 2-hexyl, 3-hexyl, neo-hexyl, cyclohexyl, 1-methylcyclopentyl,2-methylpentyl, n-heptyl, 2-heptyl, 3-heptyl, 4-heptyl, cycloheptyl,1-methylcyclohexyl, n-octyl, 2-ethylhexyl, cyclooctyl,1-bicyclo[2,2,2]octyl, 2-bicyclo[2,2,2]-octyl, 2-(2,6-dimethyl)octyl,3-(3,7-dimethyl)octyl, adamantyl, 2,2,2-trifluorethyl,1,1-dimethyl-n-hex-1-yl, 1,1-dimethyl-n-hept-1-yl,1,1-dimethyl-n-oct-1-yl, 1,1-dimethyl-n-dec-1-yl,1,1-dimethyl-n-dodec-1-yl, 1,1-dimethyl-n-tetradec-1-yl,1,1-dimethyl-n-hexadec-1-yl, 1,1-dimethyl-n-octadec-1-yl,1,1-diethyl-n-hex-1-yl, 1,1-diethyl-n-hept-1-yl, 1,1-diethyl-n-oct-1-yl,1,1-diethyl-n-dec-1-yl, 1,1-diethyl-n-dodec-1-yl,1,1-diethyl-n-tetradec-1-yl, 1,1-diethyln-n-hexadec-1-yl,1,1-diethyl-n-octadec-1-yl, 1-(n-propyl)-cyclohex-1-yl,1-(n-butyl)-cyclohex-1-yl, 1-(n-hexyl)-cyclohex-1-yl,1-(n-octyl)-cyclohex-1-yl and 1-(n-decyl)-cyclohex-1-yl.

As used throughout the present application the term alkenyl compriseslinear, branched, and cyclic alkenyl substituents. The term alkenylgroup exemplarily comprises the substituents ethenyl, propenyl, butenyl,pentenyl, cyclopentenyl, hexenyl, cyclohexenyl, heptenyl, cycloheptenyl,octenyl, cyclooctenyl or cyclooctadienyl.

As used throughout the present application the term alkynyl compriseslinear, branched, and cyclic alkynyl substituents. The term alkynylgroup exemplarily comprises ethynyl, propynyl, butynyl, pentynyl,hexynyl, heptynyl or octynyl.

As used throughout the present application the term alkoxy compriseslinear, branched, and cyclic alkoxy substituents. The term alkoxy groupexemplarily comprises methoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy,i-butoxy, s-butoxy, t-butoxy and 2-methylbutoxy.

As used throughout the present application the term thioalkoxy compriseslinear, branched, and cyclic thioalkoxy substituents, in which the O ofthe exemplarily alkoxy groups is replaced by S.

As used throughout the present application, the terms “halogen” and“halo” may be understood in the broadest sense as being preferablyfluorine, chlorine, bromine or iodine.

Whenever hydrogen is mentioned herein, it could also be replaced bydeuterium at each occurrence.

It is understood that when a molecular fragment is described as being asubstituent or otherwise attached to another moiety, its name may bewritten as if it were a fragment (e.g. naphtyl, dibenzofuryl) or as ifit were the whole molecule (e.g. naphthalene, dibenzofuran). As usedherein, these different ways of designating a substituent or attachedfragment are considered to be equivalent.

In one embodiment, the organic molecules according to the invention havean excited state lifetime of not more than 150 μs, of not more than 100μs, in particular of not more than 50 μs, more preferably of not morethan 10 μs or not more than 7 μs in a film of poly(methyl methacrylate)(PMMA) with 10% by weight of organic molecule at room temperature.

In one embodiment of the invention, the organic molecules according tothe invention represent thermally-activated delayed fluorescence (TADF)emitters, which exhibit a ΔE_(ST) value, which corresponds to the energydifference between the first excited singlet state (S1) and the firstexcited triplet state (T1), of less than 5000 cm⁻¹, preferably less than3000 cm⁻¹, more preferably less than 1500 cm⁻¹, even more preferablyless than 1000 cm⁻¹ or even less than 500 cm⁻¹.

In a further embodiment of the invention, the organic moleculesaccording to the invention have an emission peak in the visible ornearest ultraviolet range, i.e., in the range of a wavelength of from380 to 800 nm, with a full width at half maximum of less than 0.50 eV,preferably less than 0.48 eV, more preferably less than 0.45 eV, evenmore preferably less than 0.43 eV or even less than 0.40 eV in a film ofpoly(methyl methacrylate) (PMMA) with 10% by weight of organic moleculeat room temperature.

In a further embodiment of the invention, the organic moleculesaccording to the invention have a “blue material index” (BMI),calculated by dividing the photoluminescence quantum yield (PLQY) in %by the CIEy color coordinate of the emitted light, of more than 150, inparticular more than 200, preferably more than 250, more preferably ofmore than 300 or even more than 500.

In a further embodiment of the invention, the organic moleculesaccording to the invention have a highest occupied molecular orbitalwith the energy E^(HOMO), which is higher in energy than −6.2 eV,preferably higher in energy than −6.1 eV and even more preferably higherin energy than −6.0 eV or even −5.9 eV.

Orbital and excited state energies can be determined either by means ofexperimental methods or by calculations employing quantum-chemicalmethods, in particular density functional theory calculations. Theenergy of the highest occupied molecular orbital E^(HOMO) is determinedby methods known to the person skilled in the art from cyclicvoltammetry measurements with an accuracy of 0.1 eV. The energy of thelowest unoccupied molecular orbital E^(LUMO) is determined as the onsetof the absorption spectrum.

The onset of an absorption spectrum is determined by computing theintersection of the tangent to the absorption spectrum with the x-axis.The tangent to the absorption spectrum is set at the low-energy side ofthe absorption band and at the point at half maximum of the maximumintensity of the absorption spectrum.

The energy of the first excited triplet state T1 is determined from theonset of the emission spectrum at low temperature, typically at 77 K.For host compounds, where the first excited singlet state and the lowesttriplet state are energetically separated by >0.4 eV, thephosphorescence is usually visible in a steady-state spectrum in2-Me-THF. The triplet energy can thus be determined as the onset of thephosphorescence spectrum. For TADF emitter molecules, the energy of thefirst excited triplet state T1 is determined from the onset of thedelayed emission spectrum at 77 K, if not otherwise stated measured in afilm of) PMMA with 10% by weight of emitter. Both for host and emittercompounds, the energy of the first excited singlet state S1 isdetermined from the onset of the emission spectrum, if not otherwisestated measured in a film of PMMA with 10% by weight of host or emittercompound. The onset of an emission spectrum is determined by computingthe intersection of the tangent to the emission spectrum with thex-axis. The tangent to the emission spectrum is set at the high-energyside of the emission band, i.e., where the emission band rises by goingfrom higher energy values to lower energy values, and at the point athalf maximum of the maximum intensity of the emission spectrum.

A further aspect of the invention relates to a process for synthesizingorganic molecules according to the invention (with an optionalsubsequent reaction), wherein a cyanophenylboronic acid is used as areactant:

According to the invention, in the reaction for the synthesis of Z0 aboronic acid ester can be used instead of a boronic acid.

An alternative synthesis route comprises the introduction of a nitrogenheterocycle via copper- or palladium-catalyzed coupling to an arylhalide or to an aryl pseudohalide, preferably an aryl bromide, an aryliodide, aryl triflate, or an aryl tosylate.

Additionally, organic molecules (with an optional subsequent reaction)according to the invention can be synthesized via the followingsynthesis route:

E0 can be synthesized via the following synthesis routes:

Alternatively, Z0 can be synthesized via the following synthesis route,wherein E^(ALT) is used as a reactant:

For the reaction of a nitrogen heterocycle in a nucleophilic aromaticsubstitution with an aryl halide, preferably an aryl fluoride, typicalconditions include the use of a base, such as tribasic potassiumphosphate or sodium hydride, for example, in an aprotic polar solvent,such as dimethyl sulfoxide (DMSO) or N,N-dimethylformamide (DMF), forexample.

A further aspect of the invention relates to the use of an organicmolecule according to the invention as a luminescent emitter or as anabsorber, and/or as host material and/or as electron transport material,and/or as hole injection material, and/or as hole blocking material inan optoelectronic device.

The optoelectronic device may be understood in the broadest sense as anydevice based on organic materials that is suitable for emitting light inthe visible or nearest ultraviolet (UV) range, i.e., in the range of awavelength of from 380 to 800 nm. More preferably, the optoelectronicdevice may be able to emit light in the visible range, i.e., of from 400to 800 nm.

In the context of such use, the optoelectronic device is moreparticularly selected from the group consisting of:

-   -   organic light-emitting diodes (OLEDs),    -   light-emitting electrochemical cells,    -   OLED sensors, especially in gas and vapour sensors not        hermetically externally shielded,    -   organic diodes,    -   organic solar cells,    -   organic transistors,    -   organic field-effect transistors,    -   organic lasers and    -   down-conversion elements.

In a preferred embodiment in the context of such use, the optoelectronicdevice is a device selected from the group consisting of an organiclight emitting diode (OLED), a light emitting electrochemical cell(LEC), and a light-emitting transistor.

In the case of the use, the fraction of the organic molecule accordingto the invention in the emission layer in an optoelectronic device, moreparticularly in OLEDs, is 1% to 99% by weight, more particularly 5% to80% by weight. In an alternative embodiment, the proportion of theorganic molecule in the emission layer is 100% by weight.

In one embodiment, the light-emitting layer comprises not only theorganic molecules according to the invention but also a host materialwhose triplet (T1) and singlet (S1) energy levels are energeticallyhigher than the triplet (T1) and singlet (S1) energy levels of theorganic molecule.

A further aspect of the invention relates to a composition comprising orconsisting of:

-   (a) at least one organic molecule according to the invention, in    particular in the form of an emitter and/or a host, and-   (b) one or more emitter and/or host materials, which differ from the    organic molecule according to the invention and-   (c) optional one or more dyes and/or one or more solvents.

In one embodiment, the light-emitting layer comprises (or (essentially)consists of) a composition comprising or consisting of:

-   (a) at least one organic molecule according to the invention, in    particular in the form of an emitter and/or a host, and-   (b) one or more emitter and/or host materials, which differ from the    organic molecule according to the invention and-   (c) optional one or more dyes and/or one or more solvents.

In a particular embodiment, the light-emitting layer EML comprises (or(essentially) consists of) a composition comprising or consisting of:

-   (i) 1-50% by weight, preferably 5-40% by weight, in particular    10-30% by weight, of one or more organic molecules according to the    invention;-   (ii) 5-99% by weight, preferably 30-94.9% by weight, in particular    40-89% by weight, of at least one host compound H; and-   (iii) optionally 0-94% by weight, preferably 0.1-65% by weight, in    particular 1-50% by weight, of at least one further host compound D    with a structure differing from the structure of the molecules    according to the invention; and-   (iv) optionally 0-94% by weight, preferably 0-65% by weight, in    particular 0-50% by weight, of a solvent; and-   (v) optionally 0-30% by weight, in particular 0-20% by weight,    preferably 0-5% by weight, of at least one further emitter molecule    F with a structure differing from the structure of the molecules    according to the invention.

Preferably, energy can be transferred from the host compound H to theone or more organic molecules according to the invention, in particulartransferred from the first excited triplet state T1(H) of the hostcompound H to the first excited triplet state T1(E) of the one or moreorganic molecules according to the invention and/or from the firstexcited singlet state S1(H) of the host compound H to the first excitedsinglet state S1(E) of the one or more organic molecules according tothe invention.

In a further embodiment, the light-emitting layer EML comprises (or(essentially) consists of) a composition comprising or consisting of:

-   (i) 1-50% by weight, preferably 5-40% by weight, in particular    10-30% by weight, of one organic molecule according to the    invention;-   (ii) 5-99% by weight, preferably 30-94.9% by weight, in particular    40-89% by weight, of one host compound H; and-   (iii) optionally 0-94% by weight, preferably 0.1-65% by weight, in    particular 1-50% by weight, of at least one further host compound D    with a structure differing from the structure of the molecules    according to the invention; and-   (iv) optionally 0-94% by weight, preferably 0-65% by weight, in    particular 0-50% by weight, of a solvent; and-   (v) optionally 0-30% by weight, in particular 0-20% by weight,    preferably 0-5% by weight, of at least one further emitter molecule    F with a structure differing from the structure of the molecules    according to the invention.

In one embodiment, the host compound H has a highest occupied molecularorbital HOMO(H) having an energy E^(HOMO)(H) in the range of from −5 to−6.5 eV and the at least one further host compound D has a highestoccupied molecular orbital HOMO(D) having an energy E^(HOMO)(D), whereinE^(HOMO)(H)>E^(HOMO)(D).

In a further embodiment, the host compound H has a lowest unoccupiedmolecular orbital LUMO(H) having an energy E^(LUMO)(H) and the at leastone further host compound D has a lowest unoccupied molecular orbitalLUMO(D) having an energy E^(LUMO)(D), wherein E^(LUMO)(H)>E^(LUMO)(D).

In one embodiment, the host compound H has a highest occupied molecularorbital HOMO(H) having an energy E^(HOMO)(H) and a lowest unoccupiedmolecular orbital LUMO(H) having an energy E^(LUMO)(H), and

-   -   the at least one further host compound D has a highest occupied        molecular orbital HOMO(D) having an energy E^(HOMO)(D) and a        lowest unoccupied molecular orbital LUMO(D) having an energy        E^(LUMO)(D),    -   the organic molecule according to the invention has a highest        occupied molecular orbital HOMO(E) having an energy E^(HOMO)(E)        and a lowest unoccupied molecular orbital LUMO(E) having an        energy E^(LUMO)(E),

wherein

E^(HOMO)(H)>E^(HOMO)(D) and the difference between the energy level ofthe highest occupied molecular orbital HOMO(E) of organic moleculeaccording to the invention (E^(HOMO)(E)) and the energy level of thehighest occupied molecular orbital HOMO(H) of the host compound H(E^(HOMO)(H) is between −0.5 eV and 0.5 eV, more preferably between −0.3eV and 0.3 eV, even more preferably between −0.2 eV and 0.2 eV or evenbetween −0.1 eV and 0.1 eV; and E^(LUMO)(H)>E^(LUMO)(D) and thedifference between the energy level of the lowest unoccupied molecularorbital LUMO(E) of organic molecule according to the invention(E^(LUMO)(E)) and the lowest unoccupied molecular orbital LUMO(D) of theat least one further host compound D (E^(LUMO))(D)) is between −0.5 eVand 0.5 eV, more preferably between −0.3 eV and 0.3 eV, even morepreferably between −0.2 eV and 0.2 eV or even between −0.1 eV and 0.1eV.

In a further aspect, the invention relates to an optoelectronic devicecomprising an organic molecule or a composition of the type describedhere, more particularly in the form of a device selected from the groupconsisting of organic light-emitting diode (OLED), light-emittingelectrochemical cell, OLED sensor, more particularly gas and vapoursensors not hermetically externally shielded, organic diode, organicsolar cell, organic transistor, organic field-effect transistor, organiclaser and down-conversion element.

In a preferred embodiment, the optoelectronic device is a deviceselected from the group consisting of an organic light emitting diode(OLED), a light emitting electrochemical cell (LEC), and alight-emitting transistor.

In one embodiment of the optoelectronic device of the invention, theorganic molecule according to the invention is used as emission materialin a light-emitting layer EML.

In one embodiment of the optoelectronic device of the invention thelight-emitting layer EML consists of the composition according to theinvention described here.

For example, when the optoelectronic device is an OLED, it may exhibitthe following layer structure:

1. substrate

2. anode layer A

3. hole injection layer, HIL

4. hole transport layer, HTL

5. electron blocking layer, EBL

6. emitting layer, EML

7. hole blocking layer, HBL

8. electron transport layer, ETL

9. electron injection layer, EIL

10. cathode layer,

wherein the OLED comprises each layer, selected from the groupconsisting of HIL, HTL, EBL, HBL, ETL and EIL, only optionally,different layers may be merged and the OLED may comprise more than onelayer of each layer type defined above.

Furthermore, the optoelectronic device optionally comprises one or moreprotective layers protecting the device from damaging exposure toharmful species in the environment including, for example, moisture,vapor and/or gases.

In one embodiment of the invention, the optoelectronic device is anOLED, which exhibits the following inverted layer structure:

1. substrate

2. cathode layer

3. electron injection layer, EIL

4. electron transport layer, ETL

5. hole blocking layer, HBL

6. emitting layer, B

7. electron blocking layer, EBL

8. hole transport layer, HTL

9. hole injection layer, HIL

10. anode layer A

Wherein the OLED with an inverted layer structure comprises each layer,selected from the group consisting of HIL, HTL, EBL, HBL, ETL and EIL,only optionally, different layers may be merged and the OLED maycomprise more than one layer of each layer types defined above.

In one embodiment of the invention, the optoelectronic device is anOLED, which may exhibit stacked architecture. In this architecture,contrary to the typical arrangement, where the OLEDs are placed side byside, the individual units are stacked on top of each other. Blendedlight may be generated with OLEDs exhibiting a stacked architecture, inparticular white light may be generated by stacking blue, green and redOLEDs. Furthermore, the OLED exhibiting a stacked architecture mayoptionally comprise a charge generation layer (CGL), which is typicallylocated between two OLED subunits and typically consists of a n-dopedand p-doped layer with the n-doped layer of one CGL being typicallylocated closer to the anode layer.

In one embodiment of the invention, the optoelectronic device is anOLED, which comprises two or more emission layers between anode andcathode. In particular, this so-called tandem OLED comprises threeemission layers, wherein one emission layer emits red light, oneemission layer emits green light and one emission layer emits bluelight, and optionally may comprise further layers such as chargegeneration layers, blocking or transporting layers between theindividual emission layers. In a further embodiment, the emission layersare adjacently stacked. In a further embodiment, the tandem OLEDcomprises a charge generation layer between each two emission layers. Inaddition, adjacent emission layers or emission layers separated by acharge generation layer may be merged.

The substrate may be formed by any material or composition of materials.Most frequently, glass slides are used as substrates. Alternatively,thin metal layers (e.g., copper, gold, silver or aluminum films) orplastic films or slides may be used. This may allow a higher degree offlexibility. The anode layer A is mostly composed of materials allowingto obtain an (essentially) transparent film. As at least one of bothelectrodes should be (essentially) transparent in order to allow lightemission from the OLED, either the anode layer A or the cathode layer Cis transparent. Preferably, the anode layer A comprises a large contentor even consists of transparent conductive oxides (TCOs). Such anodelayer A may exemplarily comprise indium tin oxide, aluminum zinc oxide,fluorine doped tin oxide, indium zinc oxide, PbO, SnO, zirconium oxide,molybdenum oxide, vanadium oxide, wolfram oxide, graphite, doped Si,doped Ge, doped GaAs, doped polyaniline, doped polypyrrol and/or dopedpolythiophene.

Particularly preferably, the anode layer A (essentially) consists ofindium tin oxide (ITO) (e.g., (InO3)0.9(SnO2)0.1). The roughness of theanode layer A caused by the transparent conductive oxides (TCOs) may becompensated by using a hole injection layer (HIL). Further, the HIL mayfacilitate the injection of quasi charge carriers (i.e., holes) in thatthe transport of the quasi charge carriers from the TCO to the holetransport layer (HTL) is facilitated. The hole injection layer (HIL) maycomprise poly-3,4-ethylendioxy thiophene (PEDOT), polystyrene sulfonate(PSS), MoO₂, V₂O₅, CuPC or CuI, in particular a mixture of PEDOT andPSS. The hole injection layer (HIL) may also prevent the diffusion ofmetals from the anode layer A into the hole transport layer (HTL). TheHIL may exemplarily comprise PEDOT:PSS (poly-3,4-ethylendioxy thiophene:polystyrene sulfonate), PEDOT (poly-3,4-ethylendioxy thiophene), mMTDATA(4,4′,4″-tris[phenyl(m-tolyl)amino]triphenylamine), Spiro-TAD(2,2′,7,7′-tetrakis(n,n-diphenylamino)-9,9′-spirobifluorene), DNTPD(N1,N1′-(biphenyl-4,4′-diyl)bis(N1-phenyl-N4,N4-di-m-tolylbenzene-1,4-diamine),NPB(N,N′-nis-(1-naphthalenyl)-N,N′-bis-phenyl-(1,1′-biphenyl)-4,4′-diamine),NPNPB (N,N′-diphenyl-N,N′-di-[4-(N,N-diphenyl-amino)phenyl]benzidine),MeO-TPD (N,N,N′,N′-tetrakis(4-methoxyphenyl)benzidine), HAT-CN(1,4,5,8,9,11-hexaazatriphenylen-hexacarbonitrile) and/or Spiro-NPD(N,N′-diphenyl-N,N′-bis-(1-naphthyl)-9,9′-spirobifluorene-2,7-diamine).

Adjacent to the anode layer A or hole injection layer (HIL) typically ahole transport layer (HTL) is located. Herein, any hole transportcompound may be used. Exemplarily, electron-rich heteroaromaticcompounds such as triarylamines and/or carbazoles may be used as holetransport compound. The HTL may decrease the energy barrier between theanode layer A and the light-emitting layer EML. The hole transport layer(HTL) may also be an electron blocking layer (EBL). Preferably, holetransport compounds bear comparably high energy levels of their tripletstates T1. Exemplarily the hole transport layer (HTL) may comprise astar-shaped heterocycle such as tris(4-carbazoyl-9-ylphenyl)amine(TCTA), poly-TPD (poly(4-butylphenyl-diphenyl-amine)), [alpha]-NPD(poly(4-butylphenyl-diphenyl-amine)), TAPC(4,4′-cyclohexyliden-bis[N,N-bis(4-methylphenyl)benzenamine]), 2-TNATA(4,4′,4″-tris[2-naphthyl(phenyl)amino]triphenylamine), Spiro-TAD, DNTPD,NPB, NPNPB, MeO-TPD, HAT-CN and/or TrisPcz(9,9′-diphenyl-6-(9-phenyl-9H-carbazol-3-yl)-9H,9′H-3,3′-bicarbazole).In addition, the HTL may comprise a p-doped layer, which may be composedof an inorganic or organic dopant in an organic hole-transportingmatrix. Transition metal oxides such as vanadium oxide, molybdenum oxideor tungsten oxide may exemplarily be used as inorganic dopant.Tetrafluorotetracyanoquinodimethane (F4-TCNQ),copper-pentafluorobenzoate (Cu(I)pFBz) or transition metal complexes mayexemplarily be used as organic dopant.

The EBL may exemplarily comprise mCP (1,3-bis(carbazol-9-yl)benzene),TCTA, 2-TNATA, mCBP (3,3-di(9H-carbazol-9-yl)biphenyl), SiMCP(3,5-Di(9H-carbazol-9-yl)phenyl]triphenylsilane), DPEPO, tris-Pcz, CzSi(9-(4-tert-Butylphenyl)-3,6-bis(triphenylsilyl)-9H-carbazole), and/orDCB (N,N′-dicarbazolyl-1,4-dimethylbenzene).

Adjacent to the hole transport layer (HTL), typically, thelight-emitting layer EML is located. The light-emitting layer EMLcomprises at least one light emitting molecule. Particular, the EMLcomprises at least one light emitting molecule according to theinvention. In one embodiment, the light-emitting layer comprises onlythe organic molecules according to the invention. Typically, the EMLadditionally comprises one or more host material. Exemplarily, the hostmaterial is selected from CBP (4,4′-Bis-(N-carbazolyl)-biphenyl), mCP,mCBP Sif87 (dibenzo[b,d]thiophen-2-yltriphenylsilane), CzSi, SimCP([3,5-Di(9H-carbazol-9-yl)phenyl]triphenylsilane), Sif88(dibenzo[b,d]thiophen-2-yl)diphenylsilane), DPEPO(bis[2-(diphenylphosphino)phenyl] ether oxide),9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzothiophen-2-yl)phenyl]-9H-carbazole,9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole,9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole, T2T(2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine), T3T(2,4,6-tris(triphenyl-3-yl)-1,3,5-triazine) and/or TST(2,4,6-tris(9,9′-spirobifluorene-2-yl)-1,3,5-triazine). The hostmaterial typically should be selected to exhibit first triplet (T1) andfirst singlet (S1) energy levels, which are energetically higher thanthe first triplet (T1) and first singlet (S1) energy levels of theorganic molecule.

In one embodiment of the invention, the EML comprises a so-calledmixed-host system with at least one hole-dominant host and oneelectron-dominant host. In a particular embodiment, the EML comprisesexactly one light emitting molecule according to the invention and amixed-host system comprising T2T as electron-dominant host and a hostselected from CBP, mCP, mCBP,9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzothiophen-2-yl)phenyl]-9H-carbazole,9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole and9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole as hole-dominanthost. In a further embodiment the EML comprises 50-80% by weight,preferably 60-75% by weight of a host selected from CBP, mCP, mCBP,9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzofuran-2-yl)phenyl]-9H-carbazole,9-[3-(dibenzothiophen-2-yl)phenyl]-9H-carbazole,9-[3,5-bis(2-dibenzofuranyl)phenyl]-9H-carbazole and9-[3,5-bis(2-dibenzothiophenyl)phenyl]-9H-carbazole; 10-45% by weight,preferably 15-30% by weight of T2T and 5-40% by weight, preferably10-30% by weight of light emitting molecule according to the invention.

Adjacent to the light-emitting layer EML an electron transport layer(ETL) may be located. Herein, any electron transporter may be used.Exemplarily, compounds poor of electrons such as, e.g., benzimidazoles,pyridines, triazoles, oxadiazoles (e.g., 1,3,4-oxadiazole),phosphinoxides and sulfone, may be used. An electron transporter mayalso be a star-shaped heterocycle such as1,3,5-tri(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl (TPBi). The ETL maycomprise NBphen(2,9-bis(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline), Alq3(Aluminum-tris(8-hydroxyquinoline)), TSPO1(diphenyl-4-triphenylsilylphenyl-phosphinoxide), BPyTP2(2,7-di(2,2′-bipyridin-5-yl)triphenyle), Sif87(dibenzo[b,d]thiophen-2-yltriphenylsilane), Sif88(dibenzo[b,d]thiophen-2-yl)diphenylsilane), BmPyPhB(1,3-bis[3,5-di(pyridin-3-yl)phenyl]benzene) and/or BTB(4,4′-bis-[2-(4,6-diphenyl-1,3,5-triazinyl)]-1,1′-biphenyl). Optionally,the ETL may be doped with materials such as Liq. The electron transportlayer (ETL) may also block holes or a holeblocking layer (HBL) isintroduced. The HBL may exemplarily comprise BCP(2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline=Bathocuproine), BAlq(bis(8-hydroxy-2-methylquinoline)-(4-phenylphenoxy)aluminum), NBphen(2,9-bis(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline), Alq3(Aluminum-tris(8-hydroxyquinoline)), TSPO1(diphenyl-4-triphenylsilylphenyl-phosphinoxide), T2T(2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine), T3T(2,4,6-tris(triphenyl-3-yl)-1,3,5-triazine), TST(2,4,6-tris(9,9′-spirobifluorene-2-yl)-1,3,5-triazine), and/or TCB/TCP(1,3,5-tris(N-carbazolyl)benzol/1,3,5-tris(carbazol)-9-yl) benzene).

Adjacent to the electron transport layer (ETL), a cathode layer C may belocated. Exemplarily, the cathode layer C may comprise or may consist ofa metal (e.g., Al, Au, Ag, Pt, Cu, Zn, Ni, Fe, Pb, LiF, Ca, Ba, Mg, In,W, or Pd) or a metal alloy. For practical reasons, the cathode layer mayalso consist of (essentially) non-transparent metals such as Mg, Ca orAl. Alternatively or additionally, the cathode layer C may also comprisegraphite and or carbon nanotubes (CNTs). Alternatively, the cathodelayer C may also consist of nanoscalic silver wires.

An OLED may further, optionally, comprise a protection layer between theelectron transport layer (ETL) and the cathode layer C (which may bedesignated as electron injection layer (EIL)). This layer may compriselithium fluoride, cesium fluoride, silver, Liq(8-hydroxyquinolinolatolithium), Li₂O, BaF₂, MgO and/or NaF.

Optionally, also the electron transport layer (ETL) and/or a holeblocking layer (HBL) may comprise one or more host compounds.

In order to modify the emission spectrum and/or the absorption spectrumof the light-emitting layer EML further, the light-emitting layer EMLmay further comprise one or more further emitter molecule F. Such anemitter molecule F may be any emitter molecule known in the art.Preferably such an emitter molecule F is a molecule with a structurediffering from the structure of the molecules according to theinvention. The emitter molecule F may optionally be a TADF emitter.Alternatively, the emitter molecule F may optionally be a fluorescentand/or phosphorescent emitter molecule which is able to shift theemission spectrum and/or the absorption spectrum of the light-emittinglayer EML. Exemplarily, the triplet and/or singlet excitons may betransferred from the emitter molecule according to the invention to theemitter molecule F before relaxing to the ground state S0 by emittinglight typically red-shifted in comparison to the light emitted byemitter molecule E. Optionally, the emitter molecule F may also provoketwo-photon effects (i.e., the absorption of two photons of half theenergy of the absorption maximum).

Optionally, an optoelectronic device (e.g., an OLED) may exemplarily bean essentially white optoelectronic device. For example, such whiteoptoelectronic device may comprise at least one (deep) blue emittermolecule and one or more emitter molecules emitting green and/or redlight. Then, there may also optionally be energy transmittance betweentwo or more molecules as described above.

As used herein, if not defined more specifically in the particularcontext, the designation of the colors of emitted and/or absorbed lightis as follows:

violet: wavelength range of >380-420 nm;

deep blue: wavelength range of >420-480 nm;

sky blue: wavelength range of >480-500 nm;

green: wavelength range of >500-560 nm;

yellow: wavelength range of >560-580 nm;

orange: wavelength range of >580-620 nm;

red: wavelength range of >620-800 nm.

With respect to emitter molecules, such colors refer to the emissionmaximum. Therefore, exemplarily, a deep blue emitter has an emissionmaximum in the range of from >420 to 480 nm, a sky blue emitter has anemission maximum in the range of from >480 to 500 nm, a green emitterhas an emission maximum in a range of from >500 to 560 nm, a red emitterhas an emission maximum in a range of from >620 to 800 nm.

A deep blue emitter may preferably have an emission maximum of below 480nm, more preferably below 470 nm, even more preferably below 465 nm oreven below 460 nm. It will typically be above 420 nm, preferably above430 nm, more preferably above 440 nm or even above 450 nm.

Accordingly, a further aspect of the present invention relates to anOLED, which exhibits an external quantum efficiency at 1000 cd/m2 ofmore than 8%, more preferably of more than 10%, more preferably of morethan 13%, even more preferably of more than 15% or even more than 20%and/or exhibits an emission maximum between 420 nm and 500 nm,preferably between 430 nm and 490 nm, more preferably between 440 nm and480 nm, even more preferably between 450 nm and 470 nm and/or exhibits aLT80 value at 500 cd/m2 of more than 100 h, preferably more than 200 h,more preferably more than 400 h, even more preferably more than 750 h oreven more than 1000 h. Accordingly, a further aspect of the presentinvention relates to an OLED, whose emission exhibits a CIEy colorcoordinate of less than 0.45, preferably less than 0.30, more preferablyless than 0.20 or even more preferably less than 0.15 or even less than0.10.

A further aspect of the present invention relates to an OLED, whichemits light at a distinct color point. According to the presentinvention, the OLED emits light with a narrow emission band (small fullwidth at half maximum (FWHM)). In one aspect, the OLED according to theinvention emits light with a FWHM of the main emission peak of less than0.50 eV, preferably less than 0.48 eV, more preferably less than 0.45eV, even more preferably less than 0.43 eV or even less than 0.40 eV.

A further aspect of the present invention relates to an OLED, whichemits light with CIEx and CIEy color coordinates close to the CIEx(=0.131) and CIEy (=0.046) color coordinates of the primary color blue(CIEx=0.131 and CIEy=0.046) as defined by ITU-R Recommendation BT.2020(Rec. 2020) and thus is suited for the use in Ultra High Definition(UHD) displays, e.g. UHD-TVs. In commercial applications, typicallytop-emitting (top-electrode is transparent) devices are used, whereastest devices as used throughout the present application representbottom-emitting devices (bottom-electrode and substrate aretransparent). The CIEy color coordinate of a blue device can be reducedby up to a factor of two, when changing from a bottom- to a top-emittingdevice, while the CIEx remains nearly unchanged (Okinaka et al. (2015),22.1: Invited Paper: New Fluorescent Blue Host Materials for AchievingLow Voltage in OLEDs, SID Symposium Digest of Technical Papers, 46;doi:10.1002/sdtp.10480). Accordingly, a further aspect of the presentinvention relates to an OLED, whose emission exhibits a CIEx colorcoordinate of between 0.02 and 0.30, preferably between 0.03 and 0.25,more preferably between 0.05 and 0.20 or even more preferably between0.08 and 0.18 or even between 0.10 and 0.15 and/or a CIEy colorcoordinate of between 0.00 and 0.45, preferably between 0.01 and 0.30,more preferably between 0.02 and 0.20 or even more preferably between0.03 and 0.15 or even between 0.04 and 0.10.

In a further aspect, the invention relates to a method for producing anoptoelectronic component. In this case an organic molecule of theinvention is used.

The optoelectronic device, in particular the OLED according to thepresent invention can be produced by any means of vapor depositionand/or liquid processing. Accordingly, at least one layer is

-   -   prepared by means of a sublimation process,    -   prepared by means of an organic vapor phase deposition process,    -   prepared by means of a carrier gas sublimation process,    -   solution processed or printed.

The methods used to produce the optoelectronic device, in particular theOLED according to the present invention are known in the art. Thedifferent layers are individually and successively deposited on asuitable substrate by means of subsequent deposition processes. Theindividual layers may be deposited using the same or differingdeposition methods.

Vapor deposition processes exemplarily comprise thermal (co)evaporation,chemical vapor deposition and physical vapor deposition. For activematrix OLED display, an AMOLED backplane is used as substrate. Theindividual layer may be processed from solutions or dispersionsemploying adequate solvents. Solution deposition process exemplarilycomprise spin coating, dip coating and jet printing. Liquid processingmay optionally be carried out in an inert atmosphere (e.g., in anitrogen atmosphere) and the solvent may optionally be completely orpartially removed by means known in the state of the art.

EXAMPLES

General Synthesis Scheme I

General Procedure for Synthesis AAV1:

2-(2-fluoro-5-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine E1 (1.00equivalents), boronic acid A1 (1.50 equivalents), Pd₂(dba)₃ (0.01equivalents), 2-(dicyclohexylphosphino)-2′,6′-dimethoxy-1-1′-biphenyl(S-Phos) (0.04 equivalents) and tribasic potassium phosphate (3.00equivalents) are stirred under nitrogen atmosphere in a mixture oftoluene and water (10:1) at 110° C. until completion of the reaction(monitoring with LC/MS, usually finished within 4-16 h). After coolingto rt the reaction mixture is filtered through a fiber glass filter.Subsequently, the biphasic filtrate is added brine. The phases areseparated and the aqueous phase extracted with dichloromethane. Thecombined organic layers are dried over MgSO₄, filtered and concentratedin vacuo. The obtained crude product is purified via flashchromatography or recrystallization, giving Z1 as solid.

General Procedure for Synthesis AAV2:

The synthesis of Z2 is carried out according to AAV1, wherein2-(4-fluoro-5-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine is used asreactant.

General Procedure for Synthesis AAV3:

The synthesis of Z3 is carried out according to AAV1, wherein2-(3-fluoro-5-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine is used asreactant.

General Procedure for Synthesis AAV4:

The synthesis of Z4 is carried out according to AAV1, wherein2-(2-fluoro-3-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine is used asreactant.

General Procedure for Synthesis AAV5:

The synthesis of Z5 is carried out according to AAV1, wherein2-(3-fluoro-2-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine is used asreactant.

General Procedure for Synthesis AAV6:

The synthesis of Z6 is carried out according to AAV1, wherein2-(2-fluoro-6-Hal^(a)-phenyl)-4,6-di-R^(N)-1,3,5-triazine is used asreactant.

General Procedure for Synthesis AAV7:

Z1, Z2, Z3, Z4, Z5 or Z6 (1 equivalent), the corresponding donormolecule D-H (1.00 equivalents) and tribasic potassium phosphate (2.00equivalents) are suspended under nitrogen atmosphere in DMSO and stirredat 120° C. (12-16 h). Subsequently the reaction mixture is poured intoan excess of water in order to precipitate the product. The precipitateis filtered off, washed with water and dried under vacuum. The crudeproduct is purified by recrystallization or by flash chromatography. Theproduct is obtained as a solid.

In particular, the donor molecule D-H is a 3,6-substituted carbazole(e.g., 3,6-dimethylcarbazole, 3,6-diphenylcarbazole,3,6-di-tert-butylcarbazole), a 2,7-substituted carbazole (e.g.,2,7-dimethylcarbazole, 2,7-diphenylcarbazole,2,7-di-tert-butylcarbazole), a 1,8-substituted carbazole (e.g.,1,8-dimethylcarbazole, 1,8-diphenylcarbazole,1,8-di-tert-butylcarbazole), a 1-substituted carbazole (e.g.,1-methylcarbazole, 1-phenylcarbazole, 1-tert-butylcarbazole), a2-substituted carbazole (e.g., 2-methylcarbazole, 2-phenylcarbazole,2-tert-butylcarbazole), or a 3-substituted carbazole (e.g.,3-methylcarbazole, 3-phenylcarbazole, 3-tert-butylcarbazole).

Exemplarily a halogen-substituted carbazole, particularly3-bromocarbazole, can be used as D-H.

In a subsequent reaction a boronic acid ester functional group orboronic acid functional group may be exemplarily introduced at theposition of the one or more halogen substituents, which was introducedvia D-H, to yield the corresponding carbazol-3-ylboronic acid ester orcarbazol-3-ylboronic acid, e.g., via the reaction withbis(pinacolato)diboron (CAS No. 73183-34-3). Subsequently, one or moresubstituents R^(a) may be introduced in place of the boronic acid estergroup or the boronic acid group via a coupling reaction with thecorresponding halogenated reactant R^(a)-Hal, preferably R^(a)—Cl andR^(a)—Br.

Alternatively, one or more substituents R^(a) may be introduced at theposition of the one or more halogen substituents, which was introducedvia D-H, via the reaction with a boronic acid of the substituent R^(a)[R^(a)—B(OH)₂] or a corresponding boronic acid ester.

HPLC-MS:

HPLC-MS spectroscopy is performed on a HPLC by Agilent (1100 series)with MS-detector (Thermo LTQ XL). A reverse phase column 4.6 mm×150 mm,particle size 5.0 μm from Waters (without pre-column) is used in theHPLC. The HPLC-MS measurements are performed at room temperature (rt)with the solvents acetonitrile, water and THF in the followingconcentrations:

solvent A: H₂O (90%) MeCN (10%) solvent B: H₂O (10%) MeCN (90%) solventC: THF (50%) MeCN (50%)

From a solution with a concentration of 0.5 mg/ml an injection volume of15 μL is taken for the measurements. The following gradient is used:

Flow rate [ml/min] time [min] A [%] B [%] C [%] 3 0 40 50 10 3 10 15 2560 3 14 15 25 60 3 14.01 40 50 10 3 18 40 50 10 3 19 40 50 10

Ionisation of the probe is performed by APCI (atmospheric pressurechemical ionization).

Cyclic Voltammetry

Cyclic voltammograms are measured from solutions having concentration of10⁻³ mol/l of the organic molecules in dichloromethane or a suitablesolvent and a suitable supporting electrolyte (e.g. 0.1 mol/l oftetrabutylammonium hexafluorophosphate). The measurements are conductedat room temperature under nitrogen atmosphere with a three-electrodeassembly (Working and counter electrodes: Pt wire, reference electrode:Pt wire) and calibrated using FeCp₂/FeCp₂ ⁺ as internal standard. TheHOMO data was corrected using ferrocene as internal standard againstSCE.

Density Functional Theory Calculation

Molecular structures are optimized employing the BP86 functional and theresolution of identity approach (RI). Excitation energies are calculatedusing the (BP86) optimized structures employing Time-Dependent DFT(TD-DFT) methods. Orbital and excited state energies are calculated withthe B3LYP functional. Def2-SVP basis sets (and a m4-grid for numericalintegration are used. The Turbomole program package is used for allcalculations.

Photophysical Measurements

Sample pretreatment: Spin-coating

Apparatus: Spin150, SPS euro.

The sample concentration is 10 mg/ml, dissolved in a suitable solvent.

Program: 1) 3 s at 400 U/min; 20 s at 1000 U/min at 1000 Upm/s. 3) 10 sat 4000 U/min at 1000 Upm/s. After coating, the films are tried at 70°C. for 1 min.

Photoluminescence spectroscopy and TCSPC (Time-correlated single-photoncounting) Steady-state emission spectroscopy is measured by a HoribaScientific, Modell FluoroMax-4 equipped with a 150 W Xenon-Arc lamp,excitation- and emissions monochromators and a Hamamatsu R928photomultiplier and a time-correlated single-photon counting option.Emissions and excitation spectra are corrected using standard correctionfits.

Excited state lifetimes are determined employing the same system usingthe TCSPC method with FM-2013 equipment and a Horiba Yvon TCSPC hub.

Excitation Sources:

NanoLED 370 (wavelength: 371 nm, puls duration: 1.1 ns)

NanoLED 290 (wavelength: 294 nm, puls duration: <1 ns)

SpectraLED 310 (wavelength: 314 nm)

SpectraLED 355 (wavelength: 355 nm).

Data analysis (exponential fit) is done using the software suiteDataStation and DAS6 analysis software. The fit is specified using thechi-squared-test.

Photoluminescence Quantum Yield Measurements

For photoluminescence quantum yield (PLQY) measurements an Absolute PLQuantum Yield Measurement C9920-03G system (Hamamatsu Photonics) isused. Quantum yields and CIE coordinates are determined using thesoftware U6039-05 version 3.6.0. Emission maxima are given in nm,quantum yields D in % and CIE coordinates as x,y values. PLQY isdetermined using the following protocol:

-   -   1) Quality assurance: Anthracene in ethanol (known        concentration) is used as reference    -   2) Excitation wavelength: the absorption maximum of the organic        molecule is determined and the molecule is excited using this        wavelength    -   3) Measurement

Quantum yields are measured for sample of solutions or films undernitrogen atmosphere. The yield is calculated using the equation:

$\Phi_{PL} = {\frac{n_{photon},{{emi}ted}}{n_{photon},{absorbed}} = \frac{\int{{\frac{\lambda}{hc}\left\lbrack {{{Int}_{emitted}^{sample}(\lambda)} - {In{t_{absorbed}^{sample}(\lambda)}}} \right\rbrack}d\lambda}}{\int{{\frac{\lambda}{hc}\left\lbrack {{In{t_{emitted}^{reference}(\lambda)}} - {In{t_{absorbed}^{reference}(\lambda)}}} \right\rbrack}d\lambda}}}$

-   -   wherein n_(photon) denotes the photon count and Int. the        intensity.

Production and Characterization of Optoelectronic Devices

OLED devices comprising organic molecules according to the invention canbe produced via vacuum-deposition methods. If a layer contains more thanone compound, the weight-percentage of one or more compounds is given in%. The total weight-percentage values amount to 100%, thus if a value isnot given, the fraction of this compound equals to the differencebetween the given values and 100%.

The not fully optimized OLEDs are characterized using standard methodsand measuring electroluminescence spectra, the external quantumefficiency (in %) in dependency on the intensity, calculated using thelight detected by the photodiode, and the current. The OLED devicelifetime is extracted from the change of the luminance during operationat constant current density. The LT50 value corresponds to the time,where the measured luminance decreased to 50% of the initial luminance,analogously LT80 corresponds to the time point, at which the measuredluminance decreased to 80% of the initial luminance, LT 95 to the timepoint, at which the measured luminance decreased to 95% of the initialluminance etc. Accelerated lifetime measurements are performed (e.g.applying increased current densities). Exemplarily LT80 values at 500cd/m² are determined using the following equation:

${LT}\; 80{\left( {500\frac{cd^{2}}{m^{2}}} \right) = {LT80\left( L_{0} \right)\left( \frac{L_{0}}{500\frac{cd^{2}}{m^{2}}} \right)^{1.6}}}$

wherein L₀ denotes the initial luminance at the applied current density.

The values correspond to the average of several pixels (typically two toeight), the standard deviation between these pixels is given. Figuresshow the data series for one OLED pixel.

Example 1

Example 1 was synthesized according to AAV1 (62% yield) and AAV7 (34%yield). MS (HPLC-MS), m/z (retention time): 752.62 (12.90 min).

FIG. 1 depicts the emission spectrum of example 1 (10% by weight inPMMA). The emission maximum is at 479 nm. The photoluminescence quantumyield (PLQY) is 86%, the full width at half maximum is 0.40 eV and theemission lifetime is 8 μs. The resulting CIE_(x) coordinate isdetermined at 0.18 and the CIE coordinate at 0.34.

In mCBP the full width at half maximum is reduced to 0.37 eV.

Example 2

Example 2 was synthesized according to AAV1 (62% yield) and AAV7 (67%yield). MS (HPLC-MS), m/z (retention time): 640.34 (11.82 min).

FIG. 2 depicts the emission spectrum of example 2 (10% by weight inPMMA). The emission maximum is at 464 nm. The photoluminescence quantumyield (PLQY) is 80% and the full width at half maximum is 0.41 eV. Theresulting CIE_(x) coordinate is determined at 0.16 and the CIEcoordinate at 0.19.

Example 3

Example 3 was synthesized according to

In a two-necked flask 2-bromo-4-chloro-1-fluorobenzene [1996-30-1] (1.0equiv.), the benzofuryl boronic pinacol ester P-1 (1.2 equiv.),tris(dibenzylideneacetone)dipalladium(0) [CAS 51364-51-3] (0.02 equiv.),XPhos [CAS 564483-18-7] (0.08 equiv.) and K₃PO₄ (3.5 equiv.) weresuspended in a mixture of toluene/dioxane/water (5:5:1) and subsequentlyheated at 100° C. overnight. After cooling down to room temperature(rt), the reaction mixture was added brine and extracted withdichloromethane. The organic layer was dried over MgSO₄, filtered andconcentrated. The crude product was purified by MPLC using cyclohexaneas the eluent (solid, yield: 67%).

In a two-necked flask, aryl chloride P-2 (1.0 equiv.),bis(pinacolato)diboron [CAS 73183-34-3] (1.3 equiv.),tris(dibenzylideneacetone)dipalladium(0) [CAS 51364-51-3] (0.02 equiv.),XPhos [CAS 564483-18-7] (0.08 equiv.) and potassium acetate (3.0 equiv.)were suspended in dry toluene and heated at 100° C. for 4 h (monitoredby GC-MS). After cooling down to rt, the mixture were added brine anddichloromethane. The phases were separated, the organic layer dried overMgSO₄, filtered and concentrated. The crude product was purified bystirring with refluxing EtOH and subsequent hot filtration (solid,yield: 89%).

In a two-necked flask, the triazine derivative P-3 (1.0 equiv.), boronicester P-2.1 (1.2 equiv.), tetrakis(triphenylphosphine)palladium(0) [CAS14221-01-3] (0.1 equiv.) and potassium carbonate (3.0 equiv.) weresuspended in THF/water (3:1). The mixture was heated at 70° C.overnight. After cooling down to rt the mixture were added brine anddichloromethane and the phases were separated. The organic layer wasdried over MgSO₄, filtered and concentrated. The crude product waspurified by recrystallization from EtOH (solid, yield: 87%).

In a flame-dried three-necked flask, equipped with a reflux condenserand a septum, pre-dried Mg turnings (4.0 equiv.) and iodine (˜5 mg) weresuspended in dry THF. The mixture was stirred at rt until the color hadchanged from purple to light brownish. Subsequently, a solution of1-bromo-3,5-di-tert-butylbenzene [CAS 22385-77-9] (2.5 equiv.) was addeddropwise. After stirring at rt for 30 min, the mixture was refluxed for3 h (bleaching of the color). After cooling down to rt, with a transfercannula, the mixture was slowly transferred into another flaskcontaining a solution of cyanuric chloride [CAS 108-77-0] (1.0 equiv.)in dry THF. Subsequently, the solution was heated under refluxovernight. After cooling down to rt, followed by quenching with water,the mixture was extracted with dichloromethane. The organic layer wasdried over MgSO₄, filtered and concentrated. The crude product waspurified by MPLC using a gradient of n-hexane and dichloromethane as theeluent (white solid, yield: 71%).

Further, synthesis was performed according to AAV7 (91% yield).

MS (HPLC-MS), m/z (retention time): 1029 (31.99 min).

FIG. 3 depicts the emission spectrum of example 3 (10% by weight inPMMA). The emission maximum is at 462 nm. The photoluminescence quantumyield (PLQY) is 62% and the full width at half maximum is 0.45 eV. Theresulting CIE, coordinate is determined at 0.16 and the CIE_(y)coordinate at 0.20.

Example 4

Example 4 was synthesized according to

The synthesis of P-5 was performed by reacting boronic ester P-4 with2-chloro-4,6-diphenyl-1,3,5-triazine [CAS 3842-55-5] following the sameprocedure as described above for the synthesis of P-4 (solid, yield:92%).

The boronic ester P-5.2 was synthesized from aryl chloride P-5 accordingto the procedure described above for the synthesis of P-2.1 (solid,yield: 85%).

Compound P-6 was synthesized from 2,8-dibromodibenzofuran [CAS10016-52-1] and 4,4,5,5-tetramethyl-2-phenyl-1,3,2-dioxaborolane [CAS24388-23-6] following the protocol described above for the synthesis ofP-4 (solid, yield: 55%).

The aryl fluoride P-7 was synthesized from boronic ester P-5.1 and arylbromide P-6 following the above-mentioned protocol for the synthesis ofP-2, but using toluene/water (10:1) as the solvent, instead (solid,yield: 51%).

Further, synthesis was performed according to AAV7 (50% yield).

MS (HPLC-MS), m/z (retention time): 882 (19.90 min).

FIG. 4 depicts the emission spectrum of example 4 (10% by weight inPMMA). The emission maximum is at 473 nm. The photoluminescence quantumyield (PLQY) is 63% and the full width at half maximum is 0.43 eV. Theresulting CIE, coordinate is at 0.17 and the CIE_(y) coordinate at 0.27.

Example 5

Example 5 was synthesized as described in Example 3 and AAV7 (94%yield).

MS (HPLC-MS), m/z (retention time): 1016.9 (33.08 min).

FIG. 5 depicts the emission spectrum of example 5 (10% by weight inPMMA). The emission maximum is at 440 nm. The photoluminescence quantumyield (PLQY) is 58% and the full width at half maximum is 0.43 eV. Theresulting CIE_(x) coordinate is at 0.16 and the CIE_(y) coordinate is at0.11.

Example 6

Example 6 was synthesized as described by AAV4 from aryl chloride P-8and9-phenyl-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-9H-carbazole[CAS 1126522-69-7] with 64% yield.

Aryl chloride P-8 was synthesized from boronic ester P-9 and2-chloro-4,6-diphenyl-1,3,5-triazine [CAS 3842-55-5], following theprocedure described for the synthesis of P-5 (solid, yield: 99%).

Further, synthesis was performed according to AAV7 (41% yield).

MS (HPLC-MS), m/z (retention time): 715 (15.56 min).

FIG. 6 depicts the emission spectrum of example 6 (10% by weight inPMMA). The emission maximum is at 462 nm. The photoluminescence quantumyield (PLQY) is 59% and the full width at half maximum is 0.44 eV. Theresulting CIE, coordinate is determined at 0.16 and the CIE_(y)coordinate at 0.19.

Example 7

Example 7 was synthesized according to AAV1 (62% yield) and AAV7 (80%yield).

MS (HPLC-MS), m/z (retention time): 806 (18.03 min).

FIG. 7 depicts the emission spectrum of example 7 (10% by weight inPMMA). The emission maximum is at 473 nm. The photoluminescence quantumyield (PLQY) is 39% and the full width at half maximum is 0.41 eV. Theresulting CIE_(x) coordinate is determined at 0.17 and the CIE_(y)coordinate at 0.26.

Device D1

Example 1 was tested in an OLED-device D1 with the following layerstructure:

Layer Thickness 8 100 nm Al 7 2 nm Liq 6 30 nm NBPhen 5 50 nm Example 1(20%):mCBP (80%) 4 10 nm mCBP 3 10 nm TCTA 2 100 nm NPB 1 130 nm ITOSubstrate Glass

For D1, an external quantum efficiency (EQE) at 1000 cd/m² of 9.0±0.2%was determined and the emission maximum is at 478 nm, CIEx is 0.17 andCIEy 0.33 at 8.0 V.

Additional Examples of Organic Molecules of the Invention

Although illustrative embodiments of the present invention have beendescribed herein with reference to the accompanying drawings, it is tobe understood that the invention is not limited to those preciseembodiments, and that various other changes and modifications may bemade by one skilled in the art without departing from the scope orspirit of the invention.

The invention claimed is:
 1. An organic molecule, consisting of: onefirst chemical moiety represented by a structure of Formula I:

one second chemical moiety represented by a structure of Formula II:

wherein the first chemical moiety is linked to the second chemicalmoiety via a single bond; and one third chemical moiety represented by astructure of Formula III:

wherein the first chemical moiety is linked to the third chemical moietyvia a single bond; wherein one of T or V is the binding site of a singlebond linking the first chemical moiety to the second chemical moiety;another one of T or V is R¹; W is R¹; one of X or Y is the binding siteof a single bond linking the first chemical moiety to the third chemicalmoiety; another one of X or Y is R¹; # represents the binding site of asingle bond linking the first chemical moiety to the second chemicalmoiety; A is selected from the group consisting of O, S and N-Ph; Z is adirect bond; R^(N) is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, C₁-C₅-alkyl,wherein one or more hydrogen atoms of the C₁-C₅-alkyl are optionallysubstituted by deuterium; C₂-C₈-alkenyl, wherein one or more hydrogenatoms of the C₂-C₈-alkenyl are optionally substituted by deuterium;C₂-C₈-alkynyl, wherein one or more hydrogen atoms of the C₂-C₈-alkynylare optionally substituted by deuterium; C₆-C₁₈-aryl, which isoptionally substituted with one or more substituents R⁶; andC₃-C₁₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁶; R^(I), R^(II), R^(III), and R^(IV) is at eachoccurrence independently from another selected from the group consistingof $ and R^(d); R^(d) is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, C₆-C₁₈-aryl,which is optionally substituted with one or more substituentsindependently from another selected from the group consisting of:C₁-C₅-alkyl, wherein optionally one or more hydrogen atoms of theC₁-C₅-alkyl are independently from each other substituted by deuterium,CN, CF₃, or F; and C₆-C₁₈-aryl, which is optionally substituted with oneor more C₁-C₅-alkyl substituents; $ represents the binding site of asingle bond linking the first chemical moiety to the third chemicalmoiety; R¹ is at each occurrence independently from another selectedfrom the group consisting of: hydrogen, deuterium, C₁-C₅-alkyl, whereinone or more hydrogen atoms of the C₁-C₅-alkyl are optionally substitutedby deuterium; C₂-C₈-alkenyl, wherein one or more hydrogen atoms of theC₂-C₈-alkenyl are optionally substituted by deuterium; C₂-C₈-alkynyl,wherein one or more hydrogen atoms of the C₂-C₈-alkynyl are optionallysubstituted by deuterium; and C₆-C₁₈-aryl, which is optionallysubstituted with one or more substituents independently from anotherselected from the group consisting of: C₁-C₅-alkyl, wherein optionallyone or more hydrogen atoms of the C₁-C₅-alkyl are independently fromeach other substituted by deuterium, CN, CF₃, or F; and C₆-C₁₈-aryl,which is optionally substituted with one or more C₁-C₅-alkylsubstituents; R^(a) is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, N(R⁵)₂, OR⁵,Si(R⁵)₃, B(OR⁵)₂, OSO₂R⁵, CF₃, CN, F, Br, I, C₁-C₄₀-alkyl, which isoptionally substituted with one or more substituents R⁵ and wherein oneor more non-adjacent CH₂-groups are optionally substituted by R⁵C═CR⁵,C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O, C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO,SO₂, NR⁵, O, S or CONR⁵; C₁-C₄₀-alkoxy, which is optionally substitutedwith one or more substituents R⁵ and wherein one or more non-adjacentCH₂-groups are optionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂,Sn(R⁵)₂, C═O, C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₁-C₄₀-thioalkoxy, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkenyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkynyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵; C₆-C₆₀-aryl,which is optionally substituted with one or more substituents R⁵ andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁵; R⁵ is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, N(R⁶)₂, OR⁶,Si(R⁶)₃, B(OR⁶)₂, OSO₂R⁶, CF₃, CN, F, Br, I, C₁-C₄₀-alkyl, which isoptionally substituted with one or more substituents R⁶ and wherein oneor more non-adjacent CH₂-groups are optionally substituted by R⁶C═CR⁶,C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO,SO₂, NR⁶, O, S or CONR⁶; C₁-C₄₀-alkoxy, which is optionally substitutedwith one or more substituents R⁶ and wherein one or more non-adjacentCH₂-groups are optionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂,Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;C₁-C₄₀-thioalkoxy, which is optionally substituted with one or moresubstituents R⁶ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;C₂-C₄₀-alkenyl, which is optionally substituted with one or moresubstituents R⁶ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;C₂-C₄₀-alkynyl, which is optionally substituted with one or moresubstituents R⁶ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶; C₆-C₆₀-aryl,which is optionally substituted with one or more substituents R⁶; andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁶; R^(f) is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, N(R^(5f))₂,OR^(5f), Si(R^(5f))₃, B(OR^(5f))₂, OSO₂R^(5f), CF₃, CN, F, Br, I,C₁-C₄₀-alkyl, which is optionally substituted with one or moresubstituents R^(5f) and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂,Ge(R^(5f))₂, Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO,SO₂, NR^(5f), O, S or CONR^(5f); C₁-C₄₀-alkoxy, which is optionallysubstituted with one or more substituents R^(5f) and wherein one or morenon-adjacent CH₂-groups are optionally substituted by R^(5f)C═CR^(5f),C≡C, Si(R^(5f))₂, Ge(R^(5f))₂, Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f),P(═O)(R^(5f)), SO, SO₂, NR^(5f), O, S or CONR^(5f); C₁-C₄₀-thioalkoxy,which is optionally substituted with one or more substituents R^(5f) andwherein one or more non-adjacent CH₂-groups are optionally substitutedby R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂, Ge(R^(5f))₂, Sn(R^(5f))₂, C═O,C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO, SO₂, NR^(5f), O, S orCONR^(5f); C₂-C₄₀-alkenyl, which is optionally substituted with one ormore substituents R^(5f) and wherein one or more non-adjacent CH₂-groupsare optionally substituted by R^(5f)C═CR^(5f), C≡C, Si(R^(5f))₂,Ge(R^(5f))₂, Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f), P(═O)(R^(5f)), SO,SO₂, NR^(5f), O, S or CONR^(5f); C₂-C₄₀-alkynyl, which is optionallysubstituted with one or more substituents R^(5f) and wherein one or morenon-adjacent CH₂-groups are optionally substituted by R^(5f)C═CR^(5f),C≡C, Si(R^(5f))₂, Ge(R^(5f))₂, Sn(R^(5f))₂, C═O, C═S, C═Se, C═NR^(5f),P(═O)(R^(5f)), SO, SO₂, NR^(5f), O, S or CONR^(5f); C₆-C₆₀-aryl, whichis optionally substituted with one or more substituents R^(5f); andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R^(5f); R^(5f) is at each occurrence independently fromanother selected from the group consisting of: hydrogen, deuterium,N(R⁶)₂, OR⁶, Si(R⁶)₃, B(OR⁶)₂, OSO₂R⁶, CF₃, CN, F, Br, I, C₁-C₄₀-alkyl,which is optionally substituted with one or more substituents R⁶ andwherein one or more non-adjacent CH₂-groups are optionally substitutedby R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶,P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶; C₁-C₄₀-alkoxy, which isoptionally substituted with one or more substituents R⁶ and wherein oneor more non-adjacent CH₂-groups are optionally substituted by R⁶C═CR⁶,C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO,SO₂, NR⁶, O, S or CONR⁶; C₁-C₄₀-thioalkoxy, which is optionallysubstituted with one or more substituents R⁶ and wherein one or morenon-adjacent CH₂-groups are optionally substituted by R⁶C═CR⁶, C≡C,Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂,NR⁶, O, S or CONR⁶; C₂-C₄₀-alkenyl, which is optionally substituted withone or more substituents R⁶ and wherein one or more non-adjacentCH₂-groups are optionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂,Sn(R⁶)₂, C═O, C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶;C₂-C₄₀-alkynyl, which is optionally substituted with one or moresubstituents R⁶ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁶C═CR⁶, C≡C, Si(R⁶)₂, Ge(R⁶)₂, Sn(R⁶)₂, C═O,C═S, C═Se, C═NR⁶, P(═O)(R⁶), SO, SO₂, NR⁶, O, S or CONR⁶; C₆-C₆₀-aryl,which is optionally substituted with one or more substituents R⁶; andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁶; R⁶ is at each occurrence independently from anotherselected from the group consisting of: hydrogen, deuterium, OPh, CF₃,CN, F, C₁-C₅-alkyl, wherein optionally one or more hydrogen atoms of theC₁-C₅-alkyl are independently from each other substituted by deuterium,CN, CF₃, or F; C₁-C₅-alkoxy, wherein optionally one or more hydrogenatoms of the C₁-C₅-alkoxy are independently from each other substitutedby deuterium, CN, CF₃, or F; C₁-C₅-thioalkoxy, wherein optionally one ormore hydrogen atoms of the C₁-C₅-thioalkoxy are independently from eachother substituted by deuterium, CN, CF₃, or F; C₂-C₅-alkenyl, whereinoptionally one or more hydrogen atoms of the C₂-C₅-alkenyl areindependently from each other substituted by deuterium, CN, CF₃, or F;C₂-C₅-alkynyl, wherein optionally one or more hydrogen atoms of theC₂-C₅-alkynyl are independently from each other substituted bydeuterium, CN, CF₃, or F; C₆-C₁₈-aryl, which is optionally substitutedwith one or more C₁-C₅-alkyl substituents; C₃-C₁₇-heteroaryl, which isoptionally substituted with one or more C₁-C₅-alkyl substituents;N(C₆-C₁₈-aryl)₂; N(C₃-C₁₇-heteroaryl)₂; andN(C₃-C₁₇-heteroaryl)(C₆-C₁₈-aryl); wherein the substituents R^(a), R³,R⁴ or R⁵ independently from each other optionally form a mono- orpolycyclic, aliphatic, aromatic and/or benzo-fused ring system with oneor more substituents R^(a), R³, R⁴ or R⁵; wherein the substituents R^(f)or R^(5f) independently from each other may optionally form a mono- orpolycyclic, aliphatic, aromatic and/or benzo-fused ring system with oneor more substituents R^(f) or R^(5f); and wherein exactly onesubstituent selected from the group consisting of R^(I), R^(II), R^(III)and R^(IV) is the binding site of a single bond linking the firstchemical moiety to the third chemical moiety.
 2. The organic moleculeaccording to claim 1, wherein R¹, R^(d), R^(f) and R^(N) is at eachoccurrence independently from another selected from the group consistingof H and phenyl.
 3. The organic molecule according to claim 1, wherein Xrepresents the binding site of a single bond linking the first chemicalmoiety and the third chemical moiety, and T represents the binding siteof a single bond linking the first chemical moiety and the secondchemical moiety.
 4. The organic molecule according to claim 1, whereinthe second chemical moiety is represented by Formula IIa:


5. The organic molecule according to claim 1, wherein the secondchemical moiety is represented by Formula IIb:

wherein R^(b) is at each occurrence independently from another selectedfrom the group consisting of deuterium, N(R⁵)₂, OR⁵, Si(R⁵)₃, B(OR⁵)₂,OSO₂R⁵, CF₃, CN, F, Br, I, C₁-C₄₀-alkyl, which is optionally substitutedwith one or more substituents R⁵ and wherein one or more non-adjacentCH₂-groups are optionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂,Sn(R⁵)₂, C═O, C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₁-C₄₀-alkoxy, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₁-C₄₀-thioalkoxy, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkenyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkynyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵; C₆-C₆₀-aryl,which is optionally substituted with one or more substituents R⁵; andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁵.
 6. The organic molecule according to claim 1 whereinthe second chemical moiety is represented by formula IIc:

wherein R^(b) is at each occurrence independently from another selectedfrom the group consisting of deuterium, N(R⁵)₂, OR⁵, Si(R⁵)₃, B(OR⁵)₂,OSO₂R⁵, CF₃, CN, F, Br, I, C₁-C₄₀-alkyl, which is optionally substitutedwith one or more substituents R⁵ and wherein one or more non-adjacentCH₂-groups are optionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂,Sn(R⁵)₂, C═O, C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₁-C₄₀-alkoxy, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₁-C₄₀-thioalkoxy, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkenyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵;C₂-C₄₀-alkynyl, which is optionally substituted with one or moresubstituents R⁵ and wherein one or more non-adjacent CH₂-groups areoptionally substituted by R⁵C═CR⁵, C≡C, Si(R⁵)₂, Ge(R⁵)₂, Sn(R⁵)₂, C═O,C═S, C═Se, C═NR⁵, P(═O)(R⁵), SO, SO₂, NR⁵, O, S or CONR⁵; C₆-C₆₀-aryl,which is optionally substituted with one or more substituents R⁵; andC₃-C₅₇-heteroaryl, which is optionally substituted with one or moresubstituents R⁵.
 7. The organic molecule according to claim 5, whereinR^(b) is at each occurrence independently from another selected from thegroup consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃, Ph, which is optionallysubstituted with one or more substituents independently from each otherselected from the group consisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃ andPh; pyridinyl, which is optionally substituted with one or moresubstituents independently from each other selected from the groupconsisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃ and Ph; pyrimidinyl, which isoptionally substituted with one or more substituents independently fromeach other selected from the group consisting of Me, ^(i)Pr, ^(t)Bu, CN,CF₃ and Ph; carbazolyl, which is optionally substituted with one or moresubstituents independently from each other selected from the groupconsisting of Me, ^(i)Pr, ^(t)Bu, CN, CF₃ and Ph; triazinyl, which isoptionally substituted with one or more substituents independently fromeach other selected from the group consisting of Me, ^(i)Pr, ^(t)Bu, CN,CF₃ and Ph; and N(Ph)₂.
 8. A composition comprising at least one organicmolecule according to claim 1 as an emitter and/or host.
 9. Anoptoelectronic device comprising the organic molecule according toclaim
 1. 10. The optoelectronic device according to claim 9, wherein theoptoelectronic device is an organic light-emitting diode, alight-emitting electrochemical cell, an organic light-emitting sensor,an organic diode, an organic solar cell, an organic transistor, anorganic field-effect transistor, an organic laser or a down-conversionelement.
 11. The optoelectronic device according to claim 10,comprising: a substrate; an anode; a cathode, wherein the anode or thecathode is applied to the substrate; and at least one light-emittinglayer disposed between the anode and the cathode and which comprises theorganic molecule.
 12. An optoelectronic device comprising the organicmolecule according to claim 1, wherein the organic molecule is one of aluminescent emitter, an electron transport material, a hole injectionmaterial or a hole blocking material in the optoelectronic device. 13.The optoelectronic device according to claim 12, wherein theoptoelectronic device is an organic light-emitting diode, alight-emitting electrochemical cell, an organic light-emitting sensor,an organic diode, an organic solar cell, an organic transistor, anorganic field-effect transistor, an organic laser or a down-conversionelement.
 14. An optoelectronic device comprising the organic moleculeaccording to claim 2, wherein the optoelectronic device is an organiclight-emitting diode, a light-emitting electrochemical cell, an organiclight-emitting sensor, an organic diode, an organic solar cell, anorganic transistor, an organic field-effect transistor, an organic laseror a down-conversion element.
 15. The optoelectronic device according toclaim 14, comprising: a substrate; an anode; a cathode, wherein theanode or the cathode is applied to the substrate; and at least onelight-emitting layer disposed between the anode and the cathode andwhich comprises the organic molecule.
 16. An optoelectronic devicecomprising the organic molecule according to claim 2, wherein theorganic molecule is one of a luminescent emitter, an electron transportmaterial, a hole injection material or a hole blocking material in theoptoelectronic device.
 17. An optoelectronic device comprising thecomposition according to claim 8, wherein the optoelectronic device isan organic light-emitting diode, a light-emitting electrochemical cell,an organic light-emitting sensor, an organic diode, an organic solarcell, an organic transistor, an organic field-effect transistor, anorganic laser or a down-conversion element.
 18. The optoelectronicdevice according to claim 17, comprising: a substrate; an anode; acathode, wherein the anode or the cathode is applied to the substrate;and at least one light-emitting layer disposed between the anode and thecathode and which comprises the composition.
 19. A process for producingan optoelectronic device, comprising processing of the organic moleculeaccording to claim 1 by a vacuum evaporation method or from a solution.20. A process for producing an optoelectronic device, comprisingprocessing of the composition according to claim 8 by a vacuumevaporation method or from a solution.